package com.itheima.dao;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.itheima.entity.User;

public interface UserDao  {
    // TODO 根据用户名查询
    User selectByUserName(String username);
}
